Duocameratus


Classification: Mesozoic -> Holococcoliths -> Rarer genera -> Duocameratus
Sister taxa: Bifidalithus, Bilapillus, Multipartis, Munarinus, Octolithus, Okkolithus, Ottavianus, Pharus, Ramsaya, Russellia, Saepiovirgata, Acuturris, Anfractus, Duocameratus, Lacunolithus-Bown, Metadoga, Nicholasia, Paulpearsonia, Petrobrasiella, Pseudoconus, Semihololithus, Stereorhabdus, Tanzanella, Thecatus, unidentified holococcoliths,

Distinguishing features: Cavate holococcolith with central septum


Daughter taxa: (blue => in age window 0-300Ma)
Kite-shaped in typical view, with septum running along long axis, pointed end with thickening of the wall
Pentagonal shape in profile with flattened base, and pointed distal surface and slightly flaring walls; septum central.
Specimens not identified to species level

Taxonomy:

Citation: Duocameratus Lees, 2007
Rank: Genus

Farinacci & Howe catalog pages: Duocameratus *

Distinguishing features: Cavate holococcolith with central septum

Geological Range:
Last occurrence (top): within Turonian Stage (89.77-93.90Ma, top in Turonian stage). Data source: Total of range of species in this database
First occurrence (base): within Cenomanian Stage (93.90-100.50Ma, base in Cenomanian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Lees, J.A., (2007). New and rarely reported calcareous nannofossils from the Late Cretaceous of coastal Tanzania: outcrop samples and Tanzania Drilling Project Sites 5, 9 and 15. Journal of Nannoplankton Research, 29(1): 39-65.


nannotaxlogo400px

Duocameratus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-10-2018

Taxon Search:
Advanced Search
Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10400Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics